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Diy Piston Buttoning Experiment


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#1 tomburras

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Posted 24 March 2017 - 05:45 pm

Well, after getting the 99 shooting mint I decided to take it out for a roost shoot. The first time using an airgun hunting since October! I arrived in north yorks exited as hell and when I checked zero it was making some seriously nasty noises. It was scraping big time when cocking. A bit disheartened I borowed a shotgun to continue my outing. Was loozing forwards to that too.

Anyway....

Gets home and took the thing apart and found this...


20170324_171708_zpss4d7dvk7.jpg

20170323_192554_zpsbgffhknq.jpg

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So tonight I'm sat out in the sun with a load of sandpaper to polish it all out.

I'm planning on sticking delrin buttons to the piston cut from 6mm delrin rod.

Its mainly an experiment. Has anyone tried this? Any info or opinions appriciated!
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#2 tomburras

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Posted 24 March 2017 - 06:00 pm

Here they are

20170324_174955_zpssorq2emj.jpg

this may end up an embarrassing mistake putting this up lol proberbly should have done it first - but we will see how it goes.
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#3 bigmac 97kt

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Posted 24 March 2017 - 07:20 pm

Tom a quick tip on polishing the piston mate stick the piston in a drill use wet and dry paper with a smear of auto glem on it

 

then set the drill away and use the wet and dry to polish it back once this is done polish it off with a cloth keep the cloth away from the drill if you dont you will know why lol

 

atvbjimmy :thumbs: :thumbs: :thumbs:

 

sorry tom the pics did not go in the right order

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#4 tomburras

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Posted 24 March 2017 - 07:24 pm

Cheers jimmy on with that now....

20170324_191949_zpsfnccex7n.jpg
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#5 tomburras

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Posted 24 March 2017 - 07:25 pm

Must have shifted 1/8 mm nearly got the marks out

Nearly there with cyl too...
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#6 tomburras

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Posted 24 March 2017 - 07:28 pm

Using my specialist polishing tool lol

20170324_192613_zpsenhzxn9f.jpg
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#7 bigmac 97kt

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Posted 24 March 2017 - 07:29 pm

Fecking saves a lot of time lol :laugh:

 

used to do them by hand at one time lol :laugh:

 

looking good Tom ;)

 

atvbjimmy :thumbs: :thumbs: :thumbs:


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#8 tomburras

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Posted 24 March 2017 - 07:30 pm

Thank you!
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#9 si brown

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Posted 24 March 2017 - 07:48 pm

I've never done this tom but I've been thinking about it for a while!

my neighbours a miller so I've been think of asking him to mill stud holes out so they sit on a flat base!

cant see the super glue holding up and you don't want bits of studs floating about  :icon_eek:

cant you ask one of the engineers at work i bet one will have a pillar drill with the bit for the job!

good luck :thumbs:

 

atb si



#10 tomburras

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Posted 24 March 2017 - 07:51 pm

Been thinking bout that this morning and found this bit...

Look at this on eBay http://www.ebay.co.uk/itm/361063399369

#11 tomburras

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Posted 24 March 2017 - 07:52 pm

Looks like it will drill a hole with a perfect flat bottom. I'll have a word with him.

Want to do it myself so may ask if I can borrow the pillar drill :-)
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#12 si brown

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Posted 24 March 2017 - 07:54 pm

Been thinking bout that this morning and found this bit...

Look at this on eBay http://www.ebay.co.uk/itm/361063399369

yeah thats the one :thumbs:


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#13 tomburras

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Posted 24 March 2017 - 08:06 pm

I got a fly fishing holiday coming up so if i want to do it properly i might have to put it on the back boiler and get it all prepped and get drill bit ordered. Then go see my mate the engineer with a coffe and ask :-)
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#14 si brown

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Posted 24 March 2017 - 08:13 pm

have you had a crack at fly fishing for pike yet?!

looks fun but I'm sh!te with a fly rod :cray:


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#15 tomburras

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Posted 24 March 2017 - 08:16 pm

I'd like to place a button here where this round thing is as that rubs. Can I sink a bit in half a mill here in this? Or is it a important part that holds the latch rod?

Many thanks

Tom.


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